Guardrail with adjustable transverse length

Abstract

The utility model belongs to the technical field of guardrails, and particularly relates to a guardrail with an adjustable transverse length, which comprises a first upright post and a second upright post, an upper transverse rail is arranged between the first upright post and the second upright post, a lower transverse rail is connected to the side surface of the first upright post, and an upright rod is arranged between the upper transverse rail and the lower transverse rail. The vertical rods are connected with the upper cross bar and the lower cross bar through first rotating shafts respectively, guide rods are inserted into the upper cross bar, sliding sleeves are connected to the ends of the guide rods and the upper cross bar respectively, sliding rails are connected to the inner walls of the first vertical columns and the inner walls of the second vertical columns respectively, bearings are installed in the second vertical columns, and threaded rods connected to the bearings in a penetrating mode are inserted into the cross bars. According to the guardrail, the threaded rod drives the second stand column to move in the direction away from the first stand column when rotating in the lower cross bar, the second stand column drives the upper cross bar to slide on the surface of the guide rod through the sliding sleeve and the sliding rail when moving transversely, and therefore the transverse length of the guardrail can be adjusted by adjusting the distance between the first stand column and the second stand column.

Description

Technical Field

[0001] This utility model belongs to the field of guardrail technology, specifically relating to a guardrail with adjustable horizontal length. Background Technology

[0002] Guardrails are facilities used to protect people, vehicles, or objects from falling, colliding, or entering dangerous areas. They are widely used in roads, bridges, construction sites, balconies, staircases, parks, playgrounds, and other places.

[0003] When used as road railings, guardrails can separate lanes, sidewalks, and motor vehicle lanes to ensure traffic safety; when used as bridge railings, they can prevent vehicles and pedestrians from falling off bridges, ensuring bridge safety; when used as construction site railings, they can be used to fence off construction sites, preventing unauthorized personnel from entering and ensuring construction safety; when used as balcony railings, they can be installed on the edges of balconies to prevent people from falling; and when used as stair railings, they can be installed on both sides of staircases to provide handrail support and prevent falls.

[0004] For example, a stainless steel guardrail with a light indicator function, as disclosed in publication number "CN218813177U", allows for length adjustment during use. By rotating the first bolt and pulling it out of the first screw hole, a guide block moves within a guide groove, facilitating the movement of an adjustment block within the groove. Once the position is determined, the first bolt is inserted back into the first screw hole for positioning and fixation. This allows for fine-tuning of the guardrail's length during installation based on the required spacing, improving installation convenience and enhancing the guardrail's practicality and flexibility. Furthermore, by installing a first mounting sleeve and a second mounting sleeve on the outer side of the vertical guardrail, which are secured by a locking block and a locking groove, and by installing a buffer sleeve on the outer side of the first and second mounting sleeves, the guardrail's anti-collision performance is effectively improved, enhancing its safety.

[0005] Existing guardrails are often designed with fixed lengths. While this simplifies production and standardizes management to some extent, it reveals significant limitations in practical use. Due to their fixed length, guardrails struggle to adapt to varying spatial layouts in different scenarios. Whether it's passageways of varying widths, platforms of different shapes, or special areas with obstacles to avoid, traditional fixed-length guardrails fall short. This lack of flexibility and adaptability not only limits the application range of guardrails but may also create safety hazards due to their inability to closely fit actual protection needs. Furthermore, it negatively impacts the overall harmony and aesthetics of the environment. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable lateral length guardrail, addressing the problem that existing guardrails are often designed with a fixed length. This fixed length design makes it difficult for guardrails to flexibly adapt to changes in spatial layout in different scenarios. Whether it's passageways of varying widths, platforms of different shapes, or special areas with obstacles that need to be avoided, traditional fixed-length guardrails are inadequate. This lack of flexibility and adaptability not only limits the application range of guardrails but may also create safety hazards due to their inability to closely fit actual protection needs. Furthermore, it also affects the overall harmony and aesthetics of the environment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable horizontal length guardrail, comprising a first post and a second post, an upper horizontal rail between the first post and the second post, a lower horizontal rail connected to the side surface of the first post, a vertical rod between the upper and lower horizontal rails, the vertical rod being connected to the upper and lower horizontal rails respectively via a first rotating shaft, a guide rod inserted inside the upper horizontal rail, a sliding sleeve connected to the end of the guide rod and the upper horizontal rail respectively, slide rails connected to the inner walls of the first and second posts respectively, a bearing installed inside the second post, a threaded rod penetrating and connected to the bearing being inserted inside the lower horizontal rail, the first post comprising a first upper horizontal rail and a second upper horizontal rail, the lower horizontal rail comprising a first lower horizontal rail and a second lower horizontal rail, and bending mechanisms respectively installed between the first upper horizontal rail and the second upper horizontal rail, and between the first lower horizontal rail and the second lower horizontal rail.

[0008] As a preferred embodiment of the adjustable horizontal length guardrail of this utility model, the uprights form a rotating structure with the upper horizontal bar via a first rotating shaft, and the uprights also form a rotating structure with the lower horizontal bar via the first rotating shaft. The guide rod is slidably connected to the upper horizontal bar.

[0009] As a preferred embodiment of the adjustable lateral length guardrail of this utility model, the sliding sleeve and the sliding rail are provided in two sets, and the sliding sleeve and the sliding rail are slidably connected.

[0010] As a preferred embodiment of the adjustable horizontal length guardrail of this utility model, the threaded rod forms a rotating structure with the second column through a bearing, and the threaded rod is threadedly connected to the lower horizontal rail.

[0011] As a preferred embodiment of the adjustable horizontal length guardrail of this utility model, the bending mechanism includes a receiving block, a rotating frame, a rotating shaft, a rotating hole, a fixing hole, a fixing bolt, a first threaded hole and a second threaded hole. The receiving block is respectively connected to the ends of the first upper horizontal bar and the first lower horizontal bar, and the rotating frame is respectively connected to the ends of the second lower horizontal bar and the second lower horizontal bar.

[0012] As a preferred embodiment of the adjustable lateral length guardrail of this utility model, the surface of the receiving block is connected to a rotating shaft, the surface of the rotating frame near the rotating shaft is provided with a rotating hole, the surface of the rotating frame is provided with a fixing hole, the surface of the fixing hole is provided with a fixing bolt, and the surface of the receiving block is provided with a first threaded hole and a second threaded hole respectively.

[0013] In a preferred embodiment of this utility model of an adjustable lateral length guardrail, the shortest distance between the rotating shaft and the center of the first threaded hole is equal to the shortest distance between the rotating shaft and the center of the second threaded hole, and the rotating frame forms a rotating structure through the rotating hole and the rotating shaft.

[0014] As a preferred embodiment of the adjustable lateral length guardrail of this utility model, the first threaded hole and the second threaded hole are of the same size, and the fixing bolt is threadedly connected to the first threaded hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, when the threaded rod rotates inside the lower horizontal bar, it can drive the second column to move away from the first column through the bearing. During this process, when the second column moves laterally, it can drive the upper horizontal bar to slide on the surface of the guide rod through the sliding sleeve and the slide rail. When the upper horizontal bar moves laterally, it pulls the column to rotate through the first rotating shaft. At this time, the height of the top of the column continuously decreases. During this process, the upper horizontal bar and the guide rod can drive the sliding sleeve to slide downward on the surface of the slide rail. In this way, the lateral length of the guardrail can be adjusted by adjusting the distance between the first column and the second column, so that the guardrail can adapt to the needs of actual use and improve the applicability and practicality of the guardrail.

[0017] In this invention, the fixing bolt can move outward when it rotates inside the first threaded hole. When the fixing bolt moves to the outside of the first threaded hole, pulling the second column can drive the rotating frame to rotate on the surface of the receiving block through the second upper horizontal bar and the second lower horizontal bar respectively. After the rotating frame rotates 90°, the fixing bolt passes through the threaded connection between the fixing hole and the second threaded hole, thus fixing the position of the rotating frame. This allows the guardrail to bend 90°, which is convenient for practical application and improves the ease of use of the guardrail device. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the original state of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure after length adjustment of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure of the bending mechanism of this utility model;

[0023] Figure 5 This is an exploded view of the connection structure of the bending mechanism of this utility model.

[0024] In the diagram: 1. First column; 2. Second column; 3. Upper horizontal bar; 301. First upper horizontal bar; 302. Second upper horizontal bar; 4. Lower horizontal bar; 401. First lower horizontal bar; 402. Second lower horizontal bar; 5. Upright pole; 6. First pivot; 7. Guide rod; 8. Sliding sleeve; 9. Slide rail; 10. Bearing; 11. Threaded rod; 12. Bending mechanism; 1201. Receiving block; 1202. Rotating frame; 1203. Rotating shaft; 1204. Rotating hole; 1205. Fixing hole; 1206. Fixing bolt; 1207. First threaded hole; 1208. Second threaded hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 This utility model provides the following technical solution: an adjustable horizontal length guardrail, including a first post 1 and a second post 2, an upper horizontal rail 3 is provided between the first post 1 and the second post 2, a lower horizontal rail 4 is connected to the side surface of the first post 1, a vertical rod 5 is provided between the upper horizontal rail 3 and the lower horizontal rail 4, the vertical rod 5 is connected to the upper horizontal rail 3 and the lower horizontal rail 4 respectively through a first rotating shaft 6, a guide rod 7 is inserted into the interior of the upper horizontal rail 3, and a sliding sleeve 8 is connected to the end of the guide rod 7 and the upper horizontal rail 3 respectively. The inner walls of the first column 1 and the second column 2 are respectively connected to slide rails 9. The second column 2 is equipped with a bearing 10. A threaded rod 11 that passes through the bearing 10 is inserted into the lower horizontal bar 4. The first column 1 includes a first upper horizontal bar 301 and a second upper horizontal bar 302. The lower horizontal bar 4 includes a first lower horizontal bar 401 and a second lower horizontal bar 402. Bending mechanisms 12 are respectively installed between the first upper horizontal bar 301 and the second upper horizontal bar 302, and between the first lower horizontal bar 401 and the second lower horizontal bar 402.

[0027] First, the guardrail should be installed at the edge of the area that needs protection to ensure that it can effectively prevent people or vehicles from accidentally entering. After placement, the first post 1 and the second post 2 should be fixed to ensure the stability of the guardrail and prevent it from loosening or shaking.

[0028] Preferably, the upright 5 forms a rotating structure with the upper horizontal bar 3 through the first rotating shaft 6, and the upright 5 forms a rotating structure with the lower horizontal bar 4 through the first rotating shaft 6, and the guide rod 7 is slidably connected to the upper horizontal bar 3.

[0029] In practical use, the upper horizontal bar 3 can slide on the surface of the guide rod 7 when it is subjected to a force and moves laterally, which can limit the direction of movement of the upper horizontal bar 3.

[0030] Preferably, there are two sets of sliding sleeves 8 and sliding rails 9, and the sliding sleeves 8 and sliding rails 9 are slidably connected.

[0031] In practical use, when the upper horizontal bar 3 and the guide rod 7 are subjected to force, they can drive the sliding sleeve 8 to slide on the surface of the slide rail 9, which can restrict the movement direction of the upper horizontal bar 3 and the guide rod 7.

[0032] Preferably, the threaded rod 11 forms a rotating structure with the second column 2 through the bearing 10, and the threaded rod 11 is threadedly connected to the lower crossbar 4.

[0033] In practical use, when the threaded rod 11 rotates inside the bearing 10, the threaded rod 11 can move laterally through the threaded connection with the lower horizontal bar 4, which can adjust the distance between the first column 1 and the second column 2.

[0034] Preferably, the bending mechanism 12 includes a receiving block 1201, a rotating frame 1202, a rotating shaft 1203, a rotating hole 1204, a fixing hole 1205, a fixing bolt 1206, a first threaded hole 1207, and a second threaded hole 1208. The receiving block 1201 is connected to the ends of the first upper horizontal bar 301 and the first lower horizontal bar 401, respectively. The rotating frame 1202 is connected to the ends of the second lower horizontal bar 402, respectively. The rotating shaft 1203 is connected to the surface of the receiving block 1201. The rotating frame 1202 near the rotating shaft 1203 has a rotating hole 1204. The rotating frame 1202 has a fixing hole 1205. The fixing bolt 1206 passes through the surface of the fixing hole 1205. The first threaded hole 1207 and the second threaded hole 1208 are respectively opened on the surface of the receiving block 1201.

[0035] Preferably, the shortest distance between the rotating shaft 1203 and the center of the first threaded hole 1207 is equal to the shortest distance between the rotating shaft 1203 and the center of the second threaded hole 1208, and the rotating frame 1202 forms a rotating structure with the rotating hole 1204 and the rotating shaft 1203.

[0036] In practical use, when the rotating frame 1202 is subjected to force, it can rotate on the surface of the rotating shaft 1203 through the rotating hole 1204, thus enabling the guardrail to bend.

[0037] Preferably, the first threaded hole 1207 and the second threaded hole 1208 are the same size, and the fixing bolt 1206 is threadedly connected to the first threaded hole 1207.

[0038] In practical use, when the fixing bolt 1206 passes through the fixing hole 1205 and is threaded to the first threaded hole 1207, the position of the rotating frame 1202 can be fixed by connecting the fixing bolt 1206 to the first threaded hole 1207.

[0039] Working principle: When the length of the guardrail needs to be adjusted, the threaded rod 11 can be rotated. When the threaded rod 11 rotates, it can move away from the lower horizontal bar 4 through the threaded connection. The horizontal movement of the threaded rod 11 can drive the second column 2 to move away from the first column 1 through the bearing 10. During this process, when the second column 2 moves horizontally, it can drive the upper horizontal bar 3 to slide on the surface of the guide rod 7 through the sliding sleeve 8 and the slide rail 9. When the upper horizontal bar 3 moves horizontally, it can pull the column 5 to rotate through the first rotating shaft 6. At this time, the height of the top of the column 5 continuously decreases. During this process, the upper horizontal bar 3 and the guide rod 7 can drive the sliding sleeve 8 to slide downward on the surface of the slide rail 9. In this way, the horizontal length of the guardrail can be adjusted by adjusting the distance between the first column 1 and the second column 2.

[0040] When the guardrail requires right-angle protection during use, the two fixing bolts 1206 can be rotated in the original state of the guardrail. As the two fixing bolts 1206 rotate within the two first threaded holes 1207, they can move away from the first threaded holes 1207. When the fixing bolts 1206 move to the outside of the first threaded holes 1207, the second post 2 can be pulled. When the second post 2 is under tension, it can drive the rotating frame 1202 on the surface of the receiving block 1201 via the second upper horizontal bar 302 and the second lower horizontal bar 402. When the rotating frame 1202 rotates 90°, the center line of the fixing hole 1205 and the second threaded hole 1208 are aligned. At this time, the fixing bolt 1206 passes through the fixing hole 1205 and moves to the opening of the second threaded hole 1208 and rotates in the opposite direction. When the fixing bolt 1206 moves in the opposite direction, it can move into the interior of the second threaded hole 1208. In this way, the position of the rotating frame 1202 can be fixed by the threaded connection between the fixing bolt 1206 and the second threaded hole 1208, which allows the guardrail to bend 90°.

[0041] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guardrail with adjustable lateral length, comprising a first post (1) and a second post (2), characterized in that: An upper horizontal bar (3) is provided between the first column (1) and the second column (2). A lower horizontal bar (4) is connected to the side surface of the first column (1). A vertical rod (5) is provided between the upper horizontal bar (3) and the lower horizontal bar (4). The vertical rod (5) is connected to the upper horizontal bar (3) and the lower horizontal bar (4) respectively through a first rotating shaft (6). A guide rod (7) is inserted into the interior of the upper horizontal bar (3). A sliding sleeve (8) is connected to the end of the guide rod (7) and the upper horizontal bar (3) respectively. The inner walls of the first column (1) and the second column (2) are respectively connected to... The slide rail (9) has a bearing (10) installed inside the second column (2). A threaded rod (11) that passes through the bearing (10) is inserted into the lower horizontal bar (4). The first column (1) includes a first upper horizontal bar (301) and a second upper horizontal bar (302). The lower horizontal bar (4) includes a first lower horizontal bar (401) and a second lower horizontal bar (402). Bending mechanisms (12) are respectively installed between the first upper horizontal bar (301) and the second upper horizontal bar (302) and between the first lower horizontal bar (401) and the second lower horizontal bar (402).

2. The adjustable lateral length guardrail according to claim 1, characterized in that: The upright (5) forms a rotating structure with the upper horizontal bar (3) through the first rotating shaft (6), and the upright (5) forms a rotating structure with the lower horizontal bar (4) through the first rotating shaft (6). The guide rod (7) is slidably connected to the upper horizontal bar (3).

3. The adjustable lateral length guardrail according to claim 1, characterized in that: There are two sets of sliding sleeves (8) and sliding rails (9), and the sliding sleeves (8) and sliding rails (9) are slidably connected.

4. The adjustable lateral length guardrail according to claim 1, characterized in that: The threaded rod (11) forms a rotating structure with the second column (2) through the bearing (10), and the threaded rod (11) is threadedly connected to the lower horizontal bar (4).

5. The adjustable lateral length guardrail according to claim 1, characterized in that: The bending mechanism (12) includes a receiving block (1201), a rotating frame (1202), a rotating shaft (1203), a rotating hole (1204), a fixing hole (1205), a fixing bolt (1206), a first threaded hole (1207) and a second threaded hole (1208). The receiving block (1201) is connected to the ends of the first upper horizontal bar (301) and the first lower horizontal bar (401) respectively. The rotating frame (1202) is connected to the ends of the second lower horizontal bar (402) and the second lower horizontal bar (402) respectively.

6. The adjustable lateral length guardrail according to claim 5, characterized in that: The surface of the receiving block (1201) is connected to a rotating shaft (1203). The rotating frame (1202) near the rotating shaft (1203) has a rotating hole (1204) on its surface. The rotating frame (1202) has a fixing hole (1205) on its surface. A fixing bolt (1206) passes through the surface of the fixing hole (1205). The surface of the receiving block (1201) has a first threaded hole (1207) and a second threaded hole (1208) on its surface.

7. The adjustable lateral length guardrail according to claim 6, characterized in that: The shortest distance between the rotating shaft (1203) and the center of the first threaded hole (1207) is equal to the shortest distance between the rotating shaft (1203) and the center of the second threaded hole (1208). The rotating frame (1202) forms a rotating structure with the rotating shaft (1203) through the rotating hole (1204).

8. The adjustable lateral length guardrail according to claim 7, characterized in that: The first threaded hole (1207) and the second threaded hole (1208) are the same size, and the fixing bolt (1206) is threadedly connected to the first threaded hole (1207).

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